CN108032504A - A kind of new steel mesh plastic composite pipe processing technology - Google Patents
A kind of new steel mesh plastic composite pipe processing technology Download PDFInfo
- Publication number
- CN108032504A CN108032504A CN201711187999.5A CN201711187999A CN108032504A CN 108032504 A CN108032504 A CN 108032504A CN 201711187999 A CN201711187999 A CN 201711187999A CN 108032504 A CN108032504 A CN 108032504A
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- layer
- plastic
- hot melt
- wire
- melt adhesive
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- 239000004033 plastic Substances 0.000 title claims abstract description 255
- 229920003023 plastic Polymers 0.000 title claims abstract description 255
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 183
- 239000010959 steel Substances 0.000 title claims abstract description 183
- 239000002131 composite material Substances 0.000 title claims abstract description 37
- 238000005516 engineering process Methods 0.000 title claims abstract description 20
- 238000001125 extrusion Methods 0.000 claims abstract description 19
- 239000010410 layer Substances 0.000 claims description 410
- 239000004831 Hot glue Substances 0.000 claims description 111
- 238000001816 cooling Methods 0.000 claims description 49
- 239000002346 layers by function Substances 0.000 claims description 27
- 239000000463 material Substances 0.000 claims description 16
- 239000000498 cooling water Substances 0.000 claims description 14
- 239000002826 coolant Substances 0.000 claims description 12
- 238000007493 shaping process Methods 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000000112 cooling gas Substances 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 9
- 239000003921 oil Substances 0.000 claims description 9
- 238000005253 cladding Methods 0.000 claims description 8
- 238000004806 packaging method and process Methods 0.000 claims description 7
- 238000005520 cutting process Methods 0.000 claims description 6
- 230000011218 segmentation Effects 0.000 claims description 5
- 238000004513 sizing Methods 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 3
- 239000012943 hotmelt Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 238000004804 winding Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 6
- 238000009434 installation Methods 0.000 abstract description 5
- 241000272165 Charadriidae Species 0.000 abstract description 4
- 238000002844 melting Methods 0.000 abstract 2
- 230000008018 melting Effects 0.000 abstract 2
- 239000003292 glue Substances 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 description 5
- 239000004744 fabric Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 230000000844 anti-bacterial effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004049 embossing Methods 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920001617 Vinyon Polymers 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0021—Combinations of extrusion moulding with other shaping operations combined with joining, lining or laminating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
- B29C48/154—Coating solid articles, i.e. non-hollow articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
- B29C48/151—Coating hollow articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
- B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
- B29C65/481—Non-reactive adhesives, e.g. physically hardening adhesives
- B29C65/4815—Hot melt adhesives, e.g. thermoplastic adhesives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/53—Joining single elements to tubular articles, hollow articles or bars
- B29C66/532—Joining single elements to the wall of tubular articles, hollow articles or bars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/74—Joining plastics material to non-plastics material
- B29C66/742—Joining plastics material to non-plastics material to metals or their alloys
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
- F16L9/147—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups comprising only layers of metal and plastics with or without reinforcement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2009/00—Layered products
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2009/00—Layered products
- B29L2009/003—Layered products comprising a metal layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
- B29L2023/22—Tubes or pipes, i.e. rigid
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Laminated Bodies (AREA)
Abstract
The present invention relates to a kind of plastic pipe manufacture technique, more particularly to a kind of new steel mesh plastic composite pipe processing technology for this.A kind of new steel mesh plastic composite pipe processing technology, step include sub-wire, encapsulated, extrusion inner plastic layer, extruding and hot melting glue, winding steel wire stratum reticulare, extruding and hot melting glue-line, extrusion outer layer plastic layer etc..The present invention due to using axial steel wire line and circumferential steel mesh structure, improving the rigid of tubing, being not easy flexural deformation, being more suitable for built on stilts installation applying working condition at the same time.
Description
Technical field
The present invention relates to a kind of plastic pipe manufacture technique, more particularly to a kind of new steel mesh plastic composite pipe processing work for this
Skill.
Background technology
Steel-plastic composite pressure pipe material be widely used in municipal administration it is buried supply water, build buried domestic water, buried fire water-supply,
Industrial wastewater discharge（Pressure pipe）, industrial acid-base solution and powder or slurry pipeline steel.The composite pipe species, domestic market are common
There are two kinds of steel skeleton polyethylene plastic composite pipe, steel wire mesh frame plastic composite tube tubing.
Existing steel frame-plastic polyethylene compound pipe（Structure such as patent No. CN98119383.8, entitled " netted reinforcing bar
Described in the manufacturing method and apparatus of the netted steel skeleton of frame-plastic composite pipe " Chinese invention patent）In manufacturing process, usually need
Steel wire is first fabricated to netted steel skeleton, netted steel skeleton is made of tubing axial direction warp and circumferential weft steel wire, Ran Houzai
Extrusion moulding is carried out on steel skeleton, in order to ensure that the steel wire of steel skeleton is indeformable, shifts, the warp of steel skeleton in extrusion process
Each of line and weft cross-contact point are required for being welded and fixed in advance, and speed of production is too slow, inefficiency.Steel wire welded
Connecing place's tensile strength reduces, and reduces the compressive resistance of steel.In order to make steel skeleton be in the centre of compound tube wall, Bu Huibian
Shape and the outside or inner side for being partial to very much tube wall, then needs thicken tube wall, steel skeleton are made using thicker steel wire, this
Sample considerably increases the production cost of multiple tube.Since two kinds of materials of steel wire and vinyon can not bond naturally, used
Easily there is steel wire and are asked with plastics layering in rising-heat contracting-cold and the impact of the Fluid pressure of conveying in pipeline in journey, steel-plastics composite pipe
Topic, causes fluid to leak booster at pipe end, therefore in construction and installation, cut-out pipe end exposed steel wire, which need to remake, to be added
Work is molded or solder up ring, and encapsulation process is carried out to pipe end, prevents the hidden leakage defect in fluid conveying.This sealed end
The construction technique complicated and time consumption of mouth, limits the use scope of this kind of tubing.
The shortcomings that to overcome above-mentioned patent No. CN98119383.8 tubing, it is compound that steel wire mesh frame plastic has been invented again by the country
Pipe（Structure such as patent No. CN200420105205.8, entitled " winding for being used to prepare wire enhancing composite plastic pipe fills
Put " described in Chinese utility model patent）.In manufacturing process, first with plastic extruder extruding pipe material inner layer plastic tube, it is being cooled to
The steel wire mesh frame of the outer wall winding both forward and reverse directions chi structure of the inner layer plastic tube of type, then extrudes hot melt adhesive special cladding institute
There is steel wire mesh frame, finally extrude one layer of plastic layer again in tubing outer layer, ectonexine plastics and steel are bonded using hot melt adhesive special
Silk screen casing play.This product structure, effectively avoids because of steel wire and the not be bonded integral hidden leakage defect of plastics, and steel wire winding exists
Inner plastic pipe outer wall, from steel wire mesh frame welding production rate limitation, production efficiency greatly improves.Due to the tubing steel wire
Winding angle is 54 degree with tubing axial angle, can meet that the axial optimization with ring inward pressure of tubing balances.But compared to upper
State patent No. CN98119383.8 tubing steel wire warps and tubing be axially in parallel, tubing CN200420105205.8 axial directions with
Circumferential direction rigid all substantially reduces, and is unfavorable for the working condition requirement that built on stilts installation uses, in built on stilts installation, flexible change
Shape.
The content of the invention
The purpose of the present invention is to solve in order to solve the deficiency of prior art performance for this, there is provided a kind of new steel mesh plastic is compound
Pipe processing technique, can be provided simultaneously with intensity height, and be avoided that the hidden danger of two kinds of Material cladding layerings, moreover it is possible to according to user demand
Selection increase internal layer is wear-resisting, anti-corrosion, antibacterial, the functional layer of self-lubricating, to improve multiple tube wire and hot melt adhesive bonding strength,
Embossing processing is made in steel wire outer surface, and the steel wire crosspoint of axial warp and circumferential weft need not weld, and improve production efficiency
Processing technology.
A kind of following new steel mesh plastic composite pipe processing technology of technical scheme, comprises the following steps.
First, more wires are made to be uniformly distributed in 360 ° using unreeling machine and sub-wire frame.
2nd, using plastic extruder and plastic packaging mold to coating one layer of hot melt adhesive one on every wire surface.
3rd, bring the wire for having coated hot melt adhesive one extrusion die of inner plastic layer into using dragger and uniformly divide
Cloth.
4th, plastics are squeezed into the mould of inner plastic layer using plastic extruder and coats wire, and formed in annular
Layer plastic layer, while inner plastic layer is formed, is coated on interior using another plastic extruder one layer of hot melt adhesive two of extrusion
On the outer wall of layer plastic layer.
5th, processing cooling water tank and vacuum sizing sleeve are extruded using plastic tube, while is passed through cooling in die mandrel and follows
Ring medium, including cooling water, cooling oil, cooling gas, will coat the inner plastic layer cooling and shaping of one layer of hot melt adhesive two；Institute
Cooling and shaping is stated by the way of interior outer mold while cooling, i.e., circulating cooling medium cooling is passed through to die mandrel and to mould
Outer shaper is passed through circulating cooling water cooling, and the cooling of segmentation independent loops cooling medium is taken in the cooling to die mandrel
Mode, Discrete control cooling temperature.
6th, steel wire spiral is wrapped in two layers of hot melt adhesive on inner plastic layer outer wall using steel wire coiler, is formed
Steel screen layer, while heated the steel wire of steel screen layer using heating generator, make two layers of steel screen layer and hot melt adhesive viscous
Close.
7th, extrude one layer of two layers of hot melt adhesive again using plastic extruder, make two layers of cladding of this layer of hot melt adhesive of secondary extrusion
Firmly steel screen layer.
8th, that layer of hot melt adhesive two coated in step 6 is heated using baking oven, is then squeezed using plastic extruder
Go out one layer of plastic overmold on the steel screen layer outer surface for having coated two layers of hot melt adhesive, form outer layer plastic layer, outer layer is moulded
Multiple tube has just been made after carrying out cooling treatment in the bed of material.
The 9th, the multiple tube made is cut out to the finished product tubing of certain length using cutting machine.
A kind of new steel mesh plastic composite pipe, including outer layer plastic layer and inner plastic layer, the outer layer plastic
Layer is coated on outside inner plastic layer, and the inner plastic layer is provided with wire along multiple tube axial direction annular spread, described
One layer of hot melt adhesive one is covered with wire surface, one layer of hot melt adhesive is provided between the outer layer plastic layer and inner plastic layer
Two, steel screen layer is provided with two layers of the hot melt adhesive, the steel screen layer is in unidirectional left-handed or unidirectional clockwise direction or two-way
Left-handed to be spirally wound on clockwise direction in two layers of hot melt adhesive, steel wire and the axis angle of the steel screen layer are small more than 0 degree
In 90 degree, functional layer is provided with the inner plastic layer madial wall.Distance of the wire on the inside of inner plastic layer
More than its distance on the outside of inner plastic layer.
As the further technical solution of the present invention, the step 4 can also be：Plastics are squeezed using plastic extruder
Enter cladding wire in the multi-layer co-extruded mould of inner plastic layer, and form annular inner plastic layer, form inner plastic layer
While, extrude one layer of hot melt adhesive two using another plastic extruder and be coated on the outer wall of inner plastic layer, while make again
The material of functional layer is squeezed into multi-layer co-extruded mould with more plastic extruders and forms functional layer, functional layer is formed at internal layer modeling
The inner wall surface of the bed of material；
As the further technical solution of the present invention, before step 1, first by the appearance of wire and the steel wire of steel screen layer
Face pressure decorative pattern, in step 2, wire coats hot melt adhesive one by steel wire plastic packaging mold, while to all wires.
A present invention also technical solution is as follows.
A kind of new steel mesh plastic composite pipe processing technology, comprises the following steps.
First, the wire of more wire layers is made to be uniformly distributed in 360 ° using unreeling machine and sub-wire frame.
2nd, bring wire layer the extrusion die of inner plastic layer into using dragger and be uniformly distributed.
The 4th, plastics and hot melt adhesive are co-extruded into the multi-layer co-extruded mould of inner plastic layer at the same time using more plastic extruders
It is interior, hot melt adhesive layer is coated wire, and form annular inner plastic layer and coated the hot melt adhesive layer of wire, the heat
Melt layer is on the outside of the inner plastic layer.
5th, processing cooling water tank and vacuum sizing sleeve are extruded using plastic tube, while is passed through cooling in die mandrel and is situated between
Matter, by inner plastic layer and hot melt adhesive layer while cooling and shaping.
6th, steel wire spiral is wrapped on the hot melt adhesive layer on inner plastic layer outer wall using steel wire coiler, forms steel
Silk screen layer, while heated the steel wire of steel screen layer using heating generator, steel screen layer is bonded with hot melt adhesive layer.
7th, extrude one layer of hot melt adhesive layer again using plastic extruder, this layer of hot melt adhesive layer of secondary extrusion is enveloped steel
Silk screen layer.
8th, that layer of hot melt adhesive layer coated in step 6 is heated using baking oven, is then squeezed using plastic extruder
Go out one layer of plastics and be coated on again to have coated on hot melt adhesive layer outer surface, form outer layer plastic layer, outer layer plastic layer is carried out
Multiple tube has just been made after cooling treatment.
The 9th, the multiple tube made is cut out to the finished product tubing of certain length using cutting machine.
A kind of new steel mesh plastic composite pipe, including outer layer plastic layer and inner plastic layer, the outer layer plastic layer
Outside inner plastic layer, one layer of hot melt adhesive layer, the hot melt are provided between the outer layer plastic layer and inner plastic layer
Steel screen layer and wire layer are provided with glue-line, the wire layer is along the rounded distribution of multiple tube axial direction, in heat
Close to the position of inner plastic layer in melt layer, the steel screen layer is in hot melt adhesive layer close to the position of outer layer plastic layer,
The steel screen layer is spirally wound in hot melt adhesive layer in unidirectional left-handed or unidirectional dextrorotation or two-way left-handed and clockwise direction direction,
The steel wire of the steel screen layer is to be less than 88 degree more than 54 degree with multiple tube axis angle, the wire layer and steel screen layer
Outer surface is pressed with decorative pattern, is provided with functional layer on the inner plastic layer madial wall, described every steel wire of wire layer with it is compound
The distance of tube axis line is equal.
As the further technical solution of the present invention, before step 1, first by the steel wire of wire and steel screen layer
Decorative pattern is suppressed in outer surface, in the step 1 after the wire of wire layer is uniformly distributed in 360 °, uses heating unit pair
The steel wire of wire layer is preheated.
As the further technical solution of the present invention, cooling and shaping described in the step 5 is cold at the same time using interior outer mold
But mode, i.e., be passed through shaper outside die mandrel and mould circulating cooling medium cooling, and to the cooling of die mandrel
The type of cooling of segmentation independent loops cooling water is taken, Discrete control cooling temperature, the cooling medium is water or oil or cooling
Gas, or piecewise combination use water, oil and cooling gas.
As the further technical solution of the present invention, the step 4 can also be：It will be moulded using more plastic extruders
Material and hot melt adhesive are co-extruded into the multi-layer co-extruded mould of inner plastic layer at the same time, hot melt adhesive layer is coated wire, and form ring
Shape inner plastic layer and the hot melt adhesive layer for having coated wire, the hot melt adhesive layer are on the outside of the inner plastic layer, together
When reuse more plastic extruders the material of functional layer squeezed into multi-layer co-extruded mould and form functional layer, functional layer is formed at
The inner wall surface of inner plastic layer.
Beneficial effects of the present invention are as follows.
1st, rigid of the present invention due to using axial steel wire line and circumferential steel mesh structure, improving tubing at the same time,
Flexural deformation is not easy, is more suitable for built on stilts installation applying working condition.
2nd, using hot melt adhesive cladding axial steel wire and circumferential winding steel wire, solve the lamination problem of steel wire and plastics, disappear
Except the hidden danger of pipe end leakage booster, numerous and diverse sealing treatment work is avoided.
3rd, after the embossing of steel wire outer surface, the long term adhesion strength of steel mesh and plastics is improved, effectively avoids composite pipe
In long-time service variation of ambient temperature make tubing expand with heat and contract with cold generation steel modeling layering.
4th, internal layer increase specific function layer is, it can be achieved that pipeline uses the wear-resisting of needs, anti-corrosion, antibacterial, the function of self-lubricating.
5th, axial steel wire line is bonded with circumferential wire using hot melt adhesive and plastic layer, and steel wire crosspoint is solid without welding
Fixed, speed of production greatly improves, and reduces production cost.
6th, it is bonded using hot melt adhesive, without welding axial and circumferential winding steel wire, avoids drawing at steel wire weld and stretch intensity drop
It is low, efficiently use the tensile strength performance of steel wire.
Brief description of the drawings
Fig. 1 splits display structure schematic diagram for the layering of new steel mesh plastic composite pipe.
Fig. 2 is new steel mesh plastic composite pipe diagrammatic cross-section.
Fig. 3 is that display structure schematic diagram is splitted in the layering of new steel mesh plastic composite pipe another kind structure.
Fig. 4 is the diagrammatic cross-section of new steel mesh plastic composite pipe another kind structure.
In figure, inner plastic layer 2, hot melt adhesive 1, wire 4, steel screen layer 5, hot melt adhesive 26, functional layer 7, outer layer modeling
The bed of material 1 ', inner plastic layer 2 ', steel screen layer 3 ', wire layer 4 ', hot melt adhesive layer 5 ', functional layer 6 '.
Embodiment
The preferred embodiment of the present invention is illustrated below in conjunction with attached drawing, it will be appreciated that described herein preferred real
Apply example to be merely to illustrate and explain the present invention, be not intended to limit the present invention.
Embodiment one.
A kind of new steel mesh plastic composite pipe processing technology, comprises the following steps.
First, more wires are made to be uniformly distributed in 360 ° using unreeling machine and sub-wire frame.
2nd, using plastic extruder and plastic packaging mold to coating one layer of hot melt adhesive one on every wire surface.
3rd, bring the wire for having coated hot melt adhesive one extrusion die of inner plastic layer into using dragger and uniformly divide
Cloth.
4th, plastics are squeezed into the mould of inner plastic layer using plastic extruder and coats wire, and formed in annular
Layer plastic layer, while inner plastic layer is formed, is coated on interior using another plastic extruder one layer of hot melt adhesive two of extrusion
On the outer wall of layer plastic layer.
5th, processing cooling water tank and vacuum sizing sleeve are extruded using plastic tube, while is passed through cooling in die mandrel and is situated between
Matter cools down, and will coat the inner plastic layer cooling and shaping of one layer of hot melt adhesive two；The cooling and shaping uses interior outer mold at the same time
The mode of cooling, i.e., be passed through die mandrel circulating cooling water cooling and be passed through circulating cooling water cooling to shaper outside mould
But, and the type of cooling for being segmented independent loops cooling water, Discrete control cooling temperature are taken in the cooling to die mandrel.
6th, steel wire spiral is wrapped in two layers of hot melt adhesive on inner plastic layer outer wall using steel wire coiler, is formed
Steel screen layer, while heated the steel wire of steel screen layer using heating generator, make two layers of steel screen layer and hot melt adhesive viscous
Close.
7th, extrude one layer of two layers of hot melt adhesive again using plastic extruder, make two layers of cladding of this layer of hot melt adhesive of secondary extrusion
Firmly steel screen layer.
8th, that layer of hot melt adhesive two coated in step 6 is heated using baking oven, is then squeezed using plastic extruder
Go out one layer of plastic overmold on the steel screen layer outer surface for having coated two layers of hot melt adhesive, form outer layer plastic layer, outer layer is moulded
Multiple tube has just been made after carrying out cooling treatment in the bed of material.
The 9th, the multiple tube made is cut out to the finished product tubing of certain length using cutting machine.
As depicted in figs. 1 and 2, a kind of new steel mesh plastic composite pipe, including outer layer plastic layer 1 and inner plastic
Layer 2, the outer layer plastic layer 1 is coated on outside inner plastic layer 2, and the inner plastic layer 2 divides along multiple tube axial direction annular
Cloth is provided with wire 4, and one layer of hot melt adhesive 1, the outer layer plastic layer 1 and inner plastic are covered with 4 surface of wire
One layer of hot melt adhesive 26 is provided between layer 2, steel screen layer 5 is provided with 26 layers of the hot melt adhesive, the steel screen layer 5 is in single
It is spirally wound on to left-handed or unidirectional clockwise direction or two-way left-handed and clockwise direction in 26 layers of hot melt adhesive, the steel screen layer 5
Steel wire and axis angle be more than 0 degree less than 90 degree, be provided with functional layer 7 on 2 madial wall of inner plastic layer.The steel
Distance of the silk thread 4 apart from the inner side of inner plastic layer 2 is more than its distance apart from the outside of inner plastic layer 2.
Embodiment two.
Before step 1, decorative pattern is first suppressed into the outer surface of wire 4 and the steel wire of steel screen layer 5.Other schemes with
Embodiment one is identical.
Embodiment three.
In step 2, wire 4 coats hot melt adhesive 1 by steel wire plastic packaging mold, while to all wires.Its other party
Case is identical with embodiment one.
Example IV.
Before step 1, decorative pattern is first suppressed into the outer surface of wire 4 and the steel wire of steel screen layer 5.Other schemes with
Embodiment one is identical.
In step 2, wire 4 coats hot melt adhesive 1 by steel wire plastic packaging mold, while to all wires.Its other party
Case is identical with embodiment one.
The step 4 is：Plastics are squeezed into the multi-layer co-extruded mould of inner plastic layer 2 using plastic extruder and are coated
Wire 4, and annular inner plastic layer 2 is formed, while inner plastic layer 2 is formed, squeezed using another plastic extruder
Go out one layer of hot melt adhesive 26 to be coated on the outer wall of inner plastic layer 2, while reuse more plastic extruders by functional layer 7
Material squeeze into multi-layer co-extruded mould and form functional layer 7, functional layer 7 is formed at the inner wall surface of inner plastic layer 2.
Embodiment five.
A kind of new steel mesh plastic composite pipe processing technology, comprises the following steps.
First, the wire for making more wire layers 4 ' using sub-wire frame is uniformly distributed in 360 °.
2nd, bring wire layer 4 ' extrusion die of inner plastic layer 2 ' into using dragger and be uniformly distributed.
The 4th, plastics and hot melt adhesive are co-extruded into the multi-layer co-extruded mould of inner plastic layer 2 ' at the same time using more plastic extruders
In tool, hot melt adhesive layer 5 ' is coated wire 4 ', and form annular inner plastic layer 2 ' and coated the hot melt adhesive layer of wire
5 ', the hot melt adhesive layer 5 ' is in the outside of inner plastic layer 2 '.
5th, processing cooling water tank is extruded using plastic tube, while cooling medium is passed through in die mandrel, by inner plastic
Layer 2 ' and hot melt adhesive layer 5 ' while cooling and shaping, the cooling and shaping is by the way of interior outer mold cools down at the same time, i.e., to mould
Plug and the outer shaper of mould are passed through circulating cooling medium cooling, and the cooling to die mandrel takes segmentation independent loops cold
But the type of cooling of water, Discrete control cooling temperature, the cooling medium is water or oil or cooling gas, or piecewise combination is adopted
With water, oil and cooling gas.
6th, steel wire spiral is wrapped on the hot melt adhesive layer on 2 ' outer wall of inner plastic layer using steel wire coiler, is formed
Steel screen layer 3 ', while heated the steel wire of steel screen layer 3 ' using heating generator, make steel screen layer 3 ' and hot melt adhesive
Layer 5 ' layers bonding.
7th, extrude one layer of layer of hot melt adhesive layer 5 ' again using plastic extruder, make this layer of layer of hot melt adhesive layer 5 ' of secondary extrusion
Envelope steel screen layer 3 '.
8th, that layer of hot melt adhesive layer 5 ' coated in step 6 is heated using baking oven, then using plastic extruder
One layer of plastics of extrusion are coated on again have been coated on the outer surface of hot melt adhesive layer 5 ', outer layer plastic layer 1 ' is formed, to outer layer plastic
Multiple tube has just been made after carrying out cooling treatment in layer 1 '.
The 9th, the multiple tube made is cut out to the finished product tubing of certain length using cutting machine.
As shown in Figure 3 and Figure 4, a kind of new steel mesh plastic composite pipe, including outer layer plastic layer 1 ' and inner plastic
Layer 2 ', the outer layer plastic layer 1 ' is in outside inner plastic layer 2 ', between the outer layer plastic layer 1 ' and inner plastic layer 2 '
One layer of hot melt adhesive layer 5 ' is provided with, steel screen layer 3 ' and wire layer 4 ', the steel wire are provided with the layer of hot melt adhesive layer 5 '
Line layer 4 ' is described close to the position of inner plastic layer 2 ' in hot melt adhesive layer 5 ' along the rounded distribution of multiple tube axial direction
Steel screen layer 3 ' is in hot melt adhesive layer 5 ' close to the position of outer layer plastic layer 1 ', and the steel screen layer 3 ' is in unidirectional left-handed
Or unidirectional dextrorotation or two-way left-handed and clockwise direction direction are spirally wound in hot melt adhesive layer 5 ', the steel wire of the steel screen layer 3 '
It is to be less than 88 degree more than 54 degree with multiple tube axis angle, the outer surface of the wire layer 4 ' and steel screen layer 3 ' is pressed with flower
Line, functional layer 6 ', described every steel wire of wire layer 4 ' and multiple tube axle center are provided with the 2 ' madial wall of inner plastic layer
The distance of line is equal.
Embodiment six.
Before step 1, decorative pattern, the step 1 are first suppressed into the outer surface of wire 4 and the steel wire of steel screen layer 5
In after the wire of wire layer 4 ' is uniformly distributed in 360 °, the steel wire of wire layer 4 ' is carried out using heating unit pre-
Heat.
The step 4：Plastics and hot melt adhesive are co-extruded into the more of inner plastic layer 2 ' at the same time using more plastic extruders
In layer co-extruding mould, hot melt adhesive layer 5 ' is coated wire 4 ', and form annular inner plastic layer 2 ' and coated wire
Hot melt adhesive layer 5 ', the hot melt adhesive layer 5 ' is in the outside of inner plastic layer 2 ', while reuses more plastic extrusions
The material of functional layer 6 ' is squeezed into multi-layer co-extruded mould and forms functional layer 6 ' by machine, and functional layer 6 ' is formed at the interior of inner plastic layer 2 '
Wall surface.Other steps are identical with embodiment five.
Finally it should be noted that：The foregoing is only a preferred embodiment of the present invention, is not intended to limit the invention,
Although the present invention is described in detail with reference to the foregoing embodiments, for those skilled in the art, it still may be used
To modify to the technical solution described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic.
Within the spirit and principles of the invention, any modification, equivalent replacement, improvement and so on, should be included in the present invention's
Within protection domain.
Claims (10)
1. a kind of new steel mesh plastic composite pipe processing technology, it is characterised in that comprise the following steps：
First, more wires are made using unreeling machine and sub-wire frame（4）It is uniformly distributed in 360 °；
2nd, using plastic extruder and plastic packaging mold to every wire（4）One layer of hot melt adhesive one is coated on surface（3）；
3rd, hot melt adhesive one will have been coated using dragger（3）Wire（4）Bring inner plastic layer into（2）Extrusion die simultaneously
It is uniformly distributed；
4th, plastics are squeezed into inner plastic layer using plastic extruder（2）Mould in cladding wire（4）, and form annular
Inner plastic layer（2）, forming inner plastic layer（2）While, extrude one layer of hot melt adhesive two using another plastic extruder
（6）It is coated on inner plastic layer（2）Outer wall on；
5th, processing cooling water tank and vacuum sizing sleeve are extruded using plastic tube, while cooling medium is passed through in die mandrel, will
One layer of hot melt adhesive two is coated（6）Inner plastic layer cooling and shaping；
6th, steel wire spiral is wrapped in inner plastic layer using steel wire coiler（2）Hot melt adhesive two on outer wall（6）On layer, shape
Into steel screen layer（5）, while heating generator is utilized by steel screen layer（5）Steel wire heated, make steel screen layer（5）With heat
Melten gel two（6）Layer bonding；
7th, one layer of hot melt adhesive two is extruded again using plastic extruder（6）Layer, makes this layer of hot melt adhesive two of secondary extrusion（6）Layer bag
Cover steel screen layer（5）；
8th, using baking oven to that layer of hot melt adhesive two that is coated in step 6（6）Heated, then extruded using plastic extruder
One layer of plastic overmold is coating hot melt adhesive two（6）The steel screen layer of layer（5）On outer surface, outer layer plastic layer is formed（1）, it is right
Outer layer plastic layer（1）Multiple tube has just been made after carrying out cooling treatment；
The 9th, the multiple tube made is cut out to the finished product tubing of certain length using cutting machine.
A kind of 2. new steel mesh plastic composite pipe processing technology according to claim 1, it is characterised in that：Described one kind
New steel mesh plastic composite pipe, including outer layer plastic layer（1）With inner plastic layer（2）, the outer layer plastic layer（1）In being coated on
Layer plastic layer（2）Outside, the inner plastic layer（2）Multiple tube axial direction annular spread is provided with wire（4）, the steel
Silk thread（4）One layer of hot melt adhesive one is covered with surface（3）, the outer layer plastic layer（1）With inner plastic layer（2）Between be provided with one
Layer hot melt adhesive two（6）, the hot melt adhesive two（6）Steel screen layer is provided with layer（5）, the steel screen layer（5）In unidirectional left-handed
Or unidirectional clockwise direction or two-way left-handed and clockwise direction are spirally wound on hot melt adhesive two（6）In layer, the steel screen layer（5）'s
Steel wire is to be less than 90 degree more than 0 degree with axis angle, the inner plastic layer（2）Functional layer is provided with madial wall（7）.
A kind of 3. new steel mesh plastic composite pipe processing technology according to claim 1 or 2, it is characterised in that：The steel
Silk thread（4）Apart from inner plastic layer（2）The distance of inner side is more than it apart from inner plastic layer（2）The distance in outside, the step
Four are：Plastics are squeezed into inner plastic layer using plastic extruder（2）Multi-layer co-extruded mould in cladding wire（4）, and shape
Circularize inner plastic layer（2）, forming inner plastic layer（2）While, extrude one layer of heat using another plastic extruder
Melten gel two（6）It is coated on inner plastic layer（2）Outer wall on, while reuse more plastic extruders by functional layer（7）'s
Material squeezes into multi-layer co-extruded mould and forms functional layer（7）, functional layer（7）It is formed at inner plastic layer（2）Inner wall surface.
A kind of 4. new steel mesh plastic composite pipe processing technology according to claim 1 or 2, it is characterised in that：In step
Before one, first by wire（4）And steel screen layer（5）Steel wire outer surface compacting decorative pattern.
A kind of 5. new steel mesh plastic composite pipe processing technology according to claim 1 or 2, it is characterised in that：Step 2
In, wire（4）Hot melt adhesive one is coated by steel wire plastic packaging mold, while to all wires（3）.
A kind of 6. new steel mesh plastic composite pipe processing technology according to claim 1 or 2, it is characterised in that：Step 5
Described in cooling and shaping using interior outer mold at the same time cool down by the way of, i.e., circulation is passed through to shaper outside die mandrel and mould
Medium cooling is cooled down, and the type of cooling of segmentation independent loops cooling water, Discrete control cooling are taken in the cooling to die mandrel
Temperature, the cooling medium is water or oil or cooling gas, or piecewise combination uses water, oil and cooling gas.
7. a kind of new steel mesh plastic composite pipe processing technology, it is characterised in that comprise the following steps：
First, more wire layers are made using unreeling machine and sub-wire frame（4’）Wire be uniformly distributed in 360 °；
2nd, using dragger by wire layer（4’）Bring inner plastic layer into（2’）Extrusion die and be uniformly distributed；
4th, plastics and hot melt adhesive are co-extruded into inner plastic layer at the same time using more plastic extruders（2’）Multi-layer co-extruded mould
It is interior, make hot melt adhesive layer（5’）Coat wire（4’）, and form annular inner plastic layer（2’）With the hot melt for having coated wire
Glue-line（5’）, the hot melt adhesive layer（5’）In the inner plastic layer（2’）Outside；
5th, processing cooling water tank and vacuum sizing sleeve are extruded using plastic tube, while cooling medium is passed through in die mandrel, will
Inner plastic layer（2’）And hot melt adhesive layer（5’）Cooling and shaping at the same time；
6th, steel wire spiral is wrapped in inner plastic layer using steel wire coiler（2’）On hot melt adhesive layer on outer wall, steel is formed
Silk screen layer（3’）, while heating generator is utilized by steel screen layer（3’）Steel wire heated, make steel screen layer（3’）With heat
Melt layer（5’）Layer bonding；
7th, one layer of hot melt adhesive layer is extruded again using plastic extruder（5’）Layer, makes hot melt adhesive layer（5’）Layer envelopes steel screen layer
（3’）；
8th, using baking oven to that layer of hot melt adhesive layer being coated in step 6（5’）Heated, then squeezed using plastic extruder
Go out one layer of plastics and be coated on again to have coated hot melt adhesive layer（5’）On outer surface, outer layer plastic layer is formed（1’）, outer layer is moulded
The bed of material（1’）Multiple tube has just been made after carrying out cooling treatment；
The 9th, the multiple tube made is cut out to the finished product tubing of certain length using cutting machine.
A kind of 8. new steel mesh plastic composite pipe processing technology according to claim 7, it is characterised in that：It is described a kind of new
Type steel mesh plastic composite pipe, including outer layer plastic layer (1 ') and inner plastic layer (2 '), the outer layer plastic layer (1 ') are in interior
Outside layer plastic layer (2 '), the outer layer plastic layer（1’）One layer of hot melt adhesive layer is provided between inner plastic layer (2 ')
(5 '), the hot melt adhesive layer (are provided with steel screen layer (3 ') and wire layer in 5 ' layers（4’）, the wire layer（4’）Along again
The rounded distribution of pipe axial direction is closed, close to inner plastic layer (2 ' in hot melt adhesive layer (5 ')）Position, the steel wire
Layer (3 '）Close to outer layer plastic layer (1 ' in hot melt adhesive layer (5 ')）Position, the steel screen layer (3 '）In unidirectional left-handed or
Unidirectional dextrorotation or two-way left-handed and clockwise direction direction are spirally wound on hot melt adhesive layer（5’）It is interior, the steel screen layer（3’）Steel
Silk is to be less than 88 degree more than 54 degree with multiple tube axis angle, the wire layer（4’）And steel screen layer（3’）Appearance face pressure
There are decorative pattern, the inner plastic layer（2’）Functional layer is provided with madial wall（6’）, the wire layer（4’）Every steel wire with
The distance of multiple tube axial line is equal.
A kind of 9. new steel mesh plastic composite pipe processing technology according to claim 7 or 8, it is characterised in that：In step
Before one, first by wire layer（4’）And steel screen layer（3’）Steel wire outer surface compacting decorative pattern, in steel in the step 1
Strand layer（4’）Wire be uniformly distributed in 360 ° after, using heating unit to wire layer（4’）Steel wire preheated,
The step 4 is：Plastics and hot melt adhesive are co-extruded into inner plastic layer at the same time using more plastic extruders（2’）Multilayer be total to
In extruding mold, make hot melt adhesive layer（5’）Coat wire（4’）, and form annular inner plastic layer（2’）With coated wire
Hot melt adhesive layer（5’）, the hot melt adhesive layer（5’）In the inner plastic layer（2’）Outside, while reuse Duo Yitai
Plastic extruder is by functional layer（6’）Material squeeze into multi-layer co-extruded mould and form functional layer（6’）, functional layer（6’）In being formed at
Layer plastic layer（2’）Inner wall surface.
A kind of 10. new steel mesh plastic composite pipe processing technology according to claim 7 or 8, it is characterised in that：The step
Cooling and shaping described in rapid five is passed through shaper outside die mandrel and mould by the way of interior outer mold cools down at the same time
Circulating cooling medium cools down, and the type of cooling of segmentation independent loops cooling water, Discrete control are taken in the cooling to die mandrel
Cooling temperature, the cooling medium is water or oil or cooling gas, or piecewise combination uses water, oil and cooling gas.
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| CN201711187997.6A Pending CN108000831A (en) | 2017-01-22 | 2017-11-24 | A kind of steel mesh plastic composite pipe processing technology |
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| CN108839323A (en) * | 2018-09-21 | 2018-11-20 | 杨明昆 | A kind of new type plastic pipeline extrusion forming device |
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| CN108050310A (en) * | 2017-12-28 | 2018-05-18 | 湖北兴欣科技股份有限公司 | A kind of Novel steel mesh framework plastic composite pipe and preparation method thereof |
| CN110027183A (en) * | 2019-04-04 | 2019-07-19 | 谭连平 | A kind of production method of the compound steady state pipe of polyethylene steel skeleton |
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| CN112873788B (en) * | 2021-01-21 | 2022-08-02 | 浙江桐欣建材有限公司 | Forming die of plastics drain pipe |
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| Publication number | Publication date |
|---|---|
| CN108000831A (en) | 2018-05-08 |
| CN106891501A (en) | 2017-06-27 |
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Application publication date: 20180515 |